MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target EFR now numbered NOAA 1928 developed
significantly and is currently the most complex region on
the visible solar disk displaying a D-type/beta-gamma
sunspot group. The largest event since the last message
was a C4.0 at 12/17/23:29 UT. Its source was a region
on the southeastern limb in the location of returning old
NOAA 1913. The region is too close to the limb to ascertain
its magnetic configuration.
The position of NOAA 1928 on December 18 at 16:30 UT is:
S15W02 (Solar X = 033", Solar Y = -230")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
Dear RHESSI Collaborators,
The current level of solar activity is low. The largest
event since the previous message was a C3.1 flare
on 16-Dec-2013 at 21:33 UT, released by NOAA 11927,
a tiny bipole that emerged on the southern boundary
of NOAA 11917. But, over all the region (11917 and
11927) continues to decay. A new region is rapidly
emerging at ~S05E15, and appears to be growing in
X-ray activity. The target region is now designated
as the new region. Low C-class activity is expected,
with a chance for a moderate C-class event.
The position of the new region on 17-Dec-2013 at 18:10 UT is:
S05E14, ( -237", -65" )
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Paul Higgins (Trinity College Dublin/LMSAL)
Dear RHESSI Collaborators,
The current level of solar activity is low. A partially occulted
C1.5 flare occurred on over the east limb on 16-Dec-2013 at
01:14 UT. The source region will be monitored as it rotates
onto the disk and its magnetic configuration becomes visible.
Yesterday's target region (NOAA 11917) has continued to
decay, and no longer exhibits any sign of mixed polarity spots.
The region was responsible for C-class activity, including the
largest event since the previous message, a C3.6 flare on
16-Dec-2013 at 03:44 UT. High B-class activity is expected
with a chance for further low C-class activity.
The position of NOAA 11917 on 16-Dec-2013 at 18:30 UT is:
S15W47, ( 692", -240" )
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Paul Higgins (Trinity College Dublin/LMSAL)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region NOAA 1917 has increased its sunspot area,
spot count, and magnetic complexity. The region is now
classified D-type/beta-gamma-delta. A weak delta configuration
is located in the northern intermediate portion of the sunspot
group. C-class activity expected with a slight chance of an
isolated M-class event in the next 24 hour period.
The position of NOAA 1917 on December 15 at 16:30 UT is:
S15W34 (Solar X = 528", Solar Y = -153")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
NOAA 1917 slowly developed since the last message.
The region is maintaining its D-type/beta-gamma sunspot
group. 1917 was the source a few C-class events. The
largest was a C2.3 at 12/14/11:24 UT. Additional C-class
activity is possible in the next 24 hours.
The position of NOAA 1917 on December 14 at 16:30 UT is:
S15W20 (Solar X = 323", Solar Y = -239")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Target region NOAA 1916 produced a limb occulted C1.7 event
at 12/13/06:24. 1916 has completed west limb passage.
The new target is NOAA 1917 a D-type/beta-gamma region
with emerging flux located in its northern portion. 1917 was
the source of a C4.8 event at 12/13/03:15 UT. Another C-class
event possible in the next 24 hours.
The position of NOAA 1917 on December 13 at 16:30 UT is:
S15W06 (Solar X = 098", Solar Y = -241")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The two largest events in the past 24 hours were produced
by eruptive filaments. A C4.6 at 12/12/03:36 UT was associated
with an eruptive filament located southeast of NOAA 1912 and
the C3.4 event at 12/12/06:59 UT was associated with an eruptive
filament located south of NOAA 1918 and southeast of NOAA
1917. Target region NOAA 1916 is still classified as an
E-type/beta-gamma region. C-class events are possible before
1916 completes west limb passage.
The position of NOAA 1916 on December 12 at 12:30 UT is:
S12W85 (Solar X = 949", Solar Y = -201")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
Solar activity is low. The largest event was a C2.3
at 12/10/20:07 produced by target region NOAA 1916.
1916 is mostly unchanged maintaining its E-type/beta-gamma
classification. C-class events possible with a slight chance
of an isolated M-class event in the next 24 hours.
The position of NOAA 1916 on December 11 at 16:30 UT is:
S12W74 (Solar X = 916", Solar Y = -200")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The target (NOAA regions 1920, N12E64 and 1921, N06E68)
have completed east limb passage without producing any
significant activity in the past 24 hours. Both regions have
simple H-type/alpha sunspot groups. The target of choice
will switch back to NOAA 1916. 1916 is maintaining a
E-type/beta-gamma classification. C-class events possible
with a chance of an isolated M-class event in the next 24
hour period.
The position of NOAA 1916 on December 10 at 12:30 UT is:
S13W58 (Solar X = 806", Solar Y = -216")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)
MM#009 Default HESSI Target
Dear RHESSI Collaborators,
The regions on the visible solar disk are mostly unchanged
and are producing only minor events. The target will switch
to a new region located in the area of old NOAA 1904. This
region was the source of a few occulted C-class events.
The largest was a C2.6 at 12/09/16:56 UT. Additional C-class
events expected with a slight chance of an isolated M-class
event in the next 24 hours.
The approximate position of the target on Dec. 09 at 13:30 UT is:
N09 E89 (Solar X = -962", Solar Y = 153")
See http://www.SolarMonitor.org for images and
http://solar.physics.montana.edu/max_millennium/ops/observing.shtml
for a description of the current Max Millennium Observing Plan.
Regards,
Bill Marquette (Helio Research)